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Boston Marathon Finish Times, Year after Year

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Finish times vs. number of runners in the Bostom Marathon, year over year. Darker means that more people ran times in that hour range, which is specified in the y axis.

This is related to the buzz about slow runners in marathons. There is definitely an expansion in the >4hr set as the data goes on. The limited results in 2013 are, of course, because of the Boston Marathon bombings.

Uses Bill Mill’s processed data.

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